[Rutherford]

I don't know how to balance this reaction:
GeS₂*4Ag₂S+K2CO₃+KNO₃-->K₂GeO₃+K₂SO₄+KNO₂+Ag+CO₂
S, Ag and C are changing their oxidation states, so how to write the oxidation and reduction half-reactions?

[AWK]

Calculate net number of removed electrons for the whole molecule
GeS₂*4Ag₂S = Ag₈GeS₆

[Rutherford]

3S^-2 are converted to 3 S⁺⁶
8Ag⁺ are converted to 8Ag⁰
3*(-2)+8*1=2
3*6+8*0=18
18-2=16e^-
16e^- are deducted?

[Rutherford]

Oh, I made a mistake. There are 6S atoms so the electron change is -40e^- and for the nitrate and nitrite is +2e^- and when I multyply this by 20 the equation can be easily solved. Thanks very much!